javascript - JS 通过嵌套的 json 创建自定义 json

Question

在这里，我需要将我的嵌套 JSON 转换为没有嵌套对象的自定义 JSON。

function transform(){  
    let items = [
        {
            "carId":328288,
            "firstName":"yathindra",
            "lastName":"rawya",
            "list":[
                {
                    "id":182396,
                    "isAvail":false,
                    "stateId":288,
                    "state":"Awesome"
                },
                {
                    "id":182396,
                    "isAvail":false,
                    "stateId":678,
                    "state":"Cool1"
                }
            ],
        },
        {
            "carId":3282488,
            "firstName":"yathindraR",
            "lastName":"K",
            "list":[
                {
                    "id":18232396,
                    "isAvail":false,
                    "stateId":22388,
                    "state":"Awesome"
                },
                {
                    "id":182356796,
                    "isAvail":false,
                    "stateId":45678,
                    "state":"Cool"
                }
            ],
        }
    ]

    let customList = [];

    for(let i=0;i<items.length;i++){

        let temp = new Array()
        for(let j=0;j<items[i].list.length;j++){
            temp.push(
                items[i].list[j].state
            )
        }
        
        customList.push({
            fname: items[i].firstName,
            lname: items[i].lastName,
            ...temp
        })
    }

    console.log(JSON.stringify(customList))
}

transform();

下面是我得到的输出。

[{"0":"Awesome","1":"Cool1","fname":"yathindra","lname":"rawya"},{"0":"Awesome","1":"Cool","fname":"yathindraR","lname":"K"}]

但我不想一开始就将项目放在临时数组中。我希望他们最后放置。像这样的东西。

[{"fname":"yathindra","lname":"rawya","0":"Awesome","1":"Cool1"},{"fname":"yathindraR","lname":"K","0":"Awesome","1":"Cool"}]

这里不需要使用数字作为临时数组中的键。因为我只想要每个值。 所以如果所有的键都是字符串并且值的顺序很重要。如何做到这一点？

Answer 1

请将您的代码替换为以下代码，它将立即生效。键将是“state-1”、“state-2”而不是“0”、“1”

function transform(){  
    let items = [
        {
            "carId":328288,
            "firstName":"yathindra",
            "lastName":"rawya",
            "list":[
                {
                    "id":182396,
                    "isAvail":false,
                    "stateId":288,
                    "state":"Awesome"
                },
                {
                    "id":182396,
                    "isAvail":false,
                    "stateId":678,
                    "state":"Cool1"
                }
            ],
        },
        {
            "carId":3282488,
            "firstName":"yathindraR",
            "lastName":"K",
            "list":[
                {
                    "id":18232396,
                    "isAvail":false,
                    "stateId":22388,
                    "state":"Awesome"
                },
                {
                    "id":182356796,
                    "isAvail":false,
                    "stateId":45678,
                    "state":"Cool"
                }
            ],
        }
    ]

    let customList = [];

    for(let i=0;i<items.length;i++){

        let temp = {};
        for(let j=0;j<items[i].list.length;j++){
            temp["state-"+(j+1)] = items[i].list[j].state;
        }

        customList.push({
            fname: items[i].firstName,
            lname: items[i].lastName,
            ...temp
        })
    }

    console.log(JSON.stringify(customList))
}

transform();